Document Type : Research Paper
Authors
Abstract
Study on relationships between a species with its surrounding biotic and abiotic environment provides valuable information in terms of propagation, domestication and breeding. For this purpose, the autecology studies of Dradocephalum kotschyi Bioss was studied in 12 natural habitats. Natural habitats were determined with using Flora Iranica and with the assistance of local people. Also, topography and climate conditions were determined for each natural habitat. In addition, phenology and dominant companion species were recorded in all growing regions. Other studied traits were mostly growth and reproductive ones including height, basal diameter and canopy cover which were evaluated in situ. Plant fitness was evaluated based on the number of produced seeds, flowering stems, observed expected and produced seeds. Results of topography and climate data showed that natural habitats were mostly in rocky highlands with a high relative humidity and cool weather in summer. Plant fitness and growth condition were significantly different in different regions which could be due to ecological and/ or genetic variations. According to the results, domestication and breeding programs are urgently required for the conservation of this valuable but endangered species.
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